| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
schorsch |
2.4 |
static const char RCSid[] = "$Id: bsdftrans.cpp,v 2.3 2014/03/29 21:51:59 greg Exp $"; |
| 3 |
greg |
2.1 |
#endif |
| 4 |
|
|
/* |
| 5 |
|
|
* Compute mass transport plan for RBF lobes |
| 6 |
|
|
*/ |
| 7 |
|
|
|
| 8 |
|
|
#define _USE_MATH_DEFINES |
| 9 |
|
|
#include <stdio.h> |
| 10 |
|
|
#include <string.h> |
| 11 |
|
|
#include "transportSimplex.h" |
| 12 |
|
|
#include "bsdfrep.h" |
| 13 |
|
|
|
| 14 |
|
|
using namespace t_simplex; |
| 15 |
|
|
using namespace std; |
| 16 |
|
|
|
| 17 |
|
|
/* Compute mass transport plan (internal call) */ |
| 18 |
|
|
extern "C" void |
| 19 |
|
|
plan_transport(MIGRATION *mig) |
| 20 |
|
|
{ |
| 21 |
schorsch |
2.4 |
double *src; |
| 22 |
|
|
double *dst; |
| 23 |
|
|
TsFlow *flow; |
| 24 |
|
|
|
| 25 |
|
|
src = new double[mtx_nrows(mig)]; |
| 26 |
|
|
dst = new double[mtx_ncols(mig)]; |
| 27 |
|
|
|
| 28 |
greg |
2.1 |
TsSignature<RBFVAL> srcSig(mtx_nrows(mig), mig->rbfv[0]->rbfa, src); |
| 29 |
|
|
TsSignature<RBFVAL> dstSig(mtx_ncols(mig), mig->rbfv[1]->rbfa, dst); |
| 30 |
schorsch |
2.4 |
flow = new TsFlow[mtx_nrows(mig)+mtx_ncols(mig)-1]; |
| 31 |
greg |
2.1 |
int n; |
| 32 |
|
|
/* clear flow matrix */ |
| 33 |
|
|
memset(mig->mtx, 0, sizeof(float)*mtx_nrows(mig)*mtx_ncols(mig)); |
| 34 |
|
|
/* set supplies & demands */ |
| 35 |
|
|
for (n = mtx_nrows(mig); n--; ) |
| 36 |
|
|
src[n] = rbf_volume(&mig->rbfv[0]->rbfa[n]) / |
| 37 |
|
|
mig->rbfv[0]->vtotal; |
| 38 |
|
|
for (n = mtx_ncols(mig); n--; ) |
| 39 |
|
|
dst[n] = rbf_volume(&mig->rbfv[1]->rbfa[n]) / |
| 40 |
|
|
mig->rbfv[1]->vtotal; |
| 41 |
|
|
|
| 42 |
|
|
n = 0; /* minimize EMD */ |
| 43 |
greg |
2.2 |
try { |
| 44 |
|
|
transportSimplex(&srcSig, &dstSig, &lobe_distance, flow, &n); |
| 45 |
|
|
} catch (...) { |
| 46 |
|
|
fprintf(stderr, "%s: caught exception from transportSimplex()!\n", |
| 47 |
|
|
progname); |
| 48 |
|
|
exit(1); |
| 49 |
|
|
} |
| 50 |
greg |
2.3 |
if (n > mtx_nrows(mig)+mtx_ncols(mig)-1) { |
| 51 |
|
|
fprintf(stderr, "%s: signature overflow in plan_transport()!\n", |
| 52 |
|
|
progname); |
| 53 |
|
|
exit(1); |
| 54 |
|
|
} |
| 55 |
greg |
2.1 |
while (n-- > 0) /* assign sparse matrix */ |
| 56 |
|
|
mtx_coef(mig, flow[n].from, flow[n].to) = flow[n].amount; |
| 57 |
schorsch |
2.4 |
|
| 58 |
|
|
delete[] src; |
| 59 |
|
|
delete[] dst; |
| 60 |
|
|
delete[] flow; |
| 61 |
greg |
2.1 |
} |
